Duplex switch.



Patented June 4, v1918.

H. G. PAPE. nuPLExswncH.' APPLICATION FILED JULY 3,19I7. 1,268,485.

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- Be" it known that Nen1l York*city,y inthe-county and State of' sinensis; eeuwen; l

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' :Application needing sien'. sensineieiseQ eczeem: I L HERMAN G. PAPE, ci

llfle'iy York, have inyented'n nen7 and useful.

Dnplei Switch, ofnivhich/ the following is specification. It is .very desirabl e at' times to install two switches ini place .of "one and this vhis necessi tinted" the injuring of'walls for. the inseiftion ofneyi'ontlet boxbiit Withmy invention 1` y can use ei plurality insert them inv an 'ordinaryfontlet box beof? narrow switches end canse of saving 'of space. i

=LA eatnrekof Vlily-invention consists in using e portionoy one switch box or honshig f as a-'closn-reior the adjacent boX or housing, -and' inthe fp reerred for-m1 provide a vrectafngulnrsiiritchbox-havingthree sides and. ek bottom, 'the ordinary box hsv-ing four sides and fa bottom, and oneiof the sides of one ofanothenfomy'boxes, my boxes being erranged' side byside Vand as an .example 1 show two although more might be used, and infmeking iny boxes int/his Emy it Wiil be clear thatlthele is sgr-eatsaving in ineteriei andthe'boxfwhichis preferably of porcelain will be cast .much `more accurately because of its being more open in the casting.

Another feature-of myinyention consists i in nsingnright-angledextension of thel tachinent plete-as eclosnre for the open side of the boxe-t one ,endiof the series.

I Another lea-ture consists in placing the bindingposts-on those sides of the which topy ` ferred form, 'covering the tops of the switchhousing and in the 'preo-f the pinrnl ity `of housings fs'o las tocoyernnd'protect -t-he'mechangismin case, for exemple., the 'tace plates. are not applied until the building ness ofthe switchmechanismV itself and it desired itimlght beimndc even more compact by vnsinggfinstead ,off the vspi-inc; 1 show, a, l lcoiled spring bent over as' in Fig; 3 of my Patent Nniiccii dated July 111, 1916.

i :i Otherffeetures'Willfbe pointed ont below.

f I n the drawings, 1

'al longitu.` in'al "sectional View of s dnples: lsi'ifiteh embodying my invention; f

f5 is e. section on iine 2-2of Fig. 1; v Fig. 3 is a pian of the actuetingmember; F 1g. is a planv of thecontact member; Fig. 5 is en end View on a reduced scale of 'the switch shown in Figsiland 2, and

Fig. 5 is e modication describedbelow. v My switch comprises aifhoilow body 1 of insninti-ng materiel' fastened by screws 2, 2, to elside piste integi'el with and projectvec.'

ing perpendicnlnrly from, an attachment guiding plete by means of which the switch is fastened 1n piece upon thensual junction hoi; (not shown). df'ithin the body 1 issecni'ed 'the switch mechanism `Whichin-` l Push biittons 13 ani 1li :ire pivotaily connected to the actuating member 9 `and, t in recesses 15 and 1G respectively, the inner Wells of the recesses limitingr the. movements of the push buttons and Iconsequentljv o member 9. y

A bowy spring 17 connects the 'two inem-- bers 9 sind 11 and serves n Ineens through which the oscillating?increments 'of member 9 ac vto oscilhite the-.driil'en member 11,. One end 17 offthis bon' spring 17 is bent "latein nliy between the members 'snd l'11, and has its extremity ngrninbent perpendicnlnrly and swim-led in e round holeiproyided in actu ating member The other'cnd 1Tb of bow spring 1? is straightnnde endsthrough s clemence hole' 19 in member 9 into and ythrough n round hole formedthrough mov-- able Contact member "parallel with the hole .ofi member 9 for end 17a and within n'hich it is sn'ix'eled. LThis straight end of BEST AVAILABLE coP` @of spring 17 is swiveled is moved around the axis of stud screw 8 toward the hole within which the opposite end 17b of spring 17 is sw'iveled, thereby 'increasing' the stress of said spring and also changing the direction 'of the application of its force to member 11.

`l When thedirection ofthe application of the force of spring 17 to vmember 11 has been changed to such an angle with relationto i stud 12 that said force starts to swing member 11 on stud 12, then said member -is snapped in onev quick movement to the opposite extreme of its movement. lThus there is no creeping movement of member 11 at the start but its movement is a quick and snappy one throughout. The reason for this is due mainly to thefact that the movement the actuating and actuated members each at the limit of its movement in either direction. f

' The contact member 11 is made with two resilient Contact arms 22 and 23 the former being radially shorter than the latter and passing by stationary contact 24 but making contact with stationary contact" 25 lwhile movable contact arm 23make's contact with stationary Contact 24 the langular movement of member 11 being greater than the angu- .35

lar distance apart of the stationary contacts.

The stationary contacts are held in place by screws 26 and 27 which vpass through the body and hold in place plates 28 and 29 which carry, and form extensions of, bindinglposts 30 and 31 for lead wires. l

ach body 1 has a bottomy 1a and three sides l", 1c and-1d, one side and the top being open, so that I dispense with one side wall for each body using the. side wall 1d as a closure for the open side of the vadjacent body, the open sideof the upper body in Fig. .2being closed by side plate 3. It will be observed in Fig. 2 that screws 2, 2, hold both boxes to lthe-side'plate 3 so. that t-he boxes. are attached to attachment plate 4 "while the extension or projecting plate 3 covers the open side of theupper box shown in Fig. 2.

It will be clear that thebinding posts 30l and 31 are on the sides of the boxes which are exposed when the boxes are assembled so that they are readily accessible for wiring and they are preferably near the bottoms of the bodies or boxes so .as to be near the holes in outlet boxes. y v -The plates 28 and 29 pass. between ad-I j aoent boxes, each box being grooved Afor its plates, and the grooves being covered by the ndacent box or bodv. j

tion each with the length vof one of said arms' -In. Fig. G I'show four switches with two face plates illustrating that I provide `four switches in' the space heretoforeoccupied by tino' switches,- this'result being inpart due to the construction of the boxes and in part to the thinness of the switch mechanism, it beingclear that the base plate 11, members 9 and 11 and the stationary contacts are all alined in substantially the same plane.

VIt will 'be clear that although I show two 7'5 switches-I may use any desired number side by side, the side wall 1d of' each box serving as a closure for'the open side of theadjacent box,1the side plate 3 serving as a closure-for the open'sideof` the end box -of the series.

lVhat I claim is:

1. In anelectric switch in combination-an oscillating. contact member provided with two contact arms of different lengths and two stationary contacts withwhich said oscillating contact members cooperate, said stationary contact members beingvlocated at dilierent distances, from the -pivot of said oscillating member corresponding vin posi- '90 so as to be engaged only by said Aone arm, the` f angular movement of the oscillating member being not less than the angular distance apart of the stationary contacts; and'means for-:actuating said oscillating' member, said actuating `means, said oscillating member and said fixed -contactsl being all alined in substantially the sameplane.l j 1 2.v In an electric switch in combination an oscillating contact member 'provided with two contact -armsof diierent length; and two stationary contacts with which said osv cillating contact membersv cooperate, said stationary contact members being located at different distances from the pivot of said oscillating member corresponding in position each with the length Iof one, of said arms so as to be'engaged only'by said one arm; 'means to hold said stationary contacts at a certain angular. distance apart withv reference to said-pivot; and means including a spring to give the oscillating member in each direction of its oscillation angular. movement not less than the 'angular distance' apart of the stationary contacts. 115

An electric switch comprising an actuating member; ay contact-carrying mem-.- ber; a bow spring having -ahookedconneca tion with one of said members-and an operative connection with the other 'of said mem- 120 bers, said spring being twistedon its axis by lthe actuating member and when twisted -actuating the contact-carrying member; and a xed contact cooperating ,withthecontact- 1 carrying member.

.l 4:. An electric switch comprising an actuating member; a` contact-carrying mem ber; a bow springlhaving one 4or more coils and having av hooked connection with one of saidfmembers and an operative connection with the other of 'said members, said spring hooked connection with one of said membeing 'twisted on, its axis by the actuating bers, said spring being. compressed and member and when twisted actuating the 'conf twisted or turned on its axis by the actuattact-ca-rrying member; and a fixed contact ing member and when so twisted or turned i 5 coperating with the contact-carrying memactuating the contact member, said spring. 15 bert Y v moving bodily into reverse position; and a' Q5. A11 electric switch comprisingv push fixed Contact coperating with-said contact buttons an actuating oscillating member member. Y A operated by the push buttons; an oscillating l 10 contact member; `a bow spring having a HERMAN G. PAPE. l 

